Metallurgy Stefano Spigarelli
There are no mandatory prerequisites for this course, although the knowledge of the fundamentals of Chemistry is highly reccommended
KNOWLEDGE AND UNDERSTANDING:
At the end of the course, the students will acquire the knowledge on the nature, classification and properties of ferrous metals, with hints on the same issues for aluminium alloys. These subjects constitute a fundamental part of the wealth of knowledge at the basis of mechanical engineering in the fields of mechanical design and materials processingCAPACITY TO APPLY KNOWLEDGE AND UNDERSTANDING:
At the end of the course students will be able to identify the main properties of the different groups of steels, cast irons and aluminium alloys. This knowledge will be reflected in the ability to use the following tools: 1. The capacity of selecting the best steel, cast iron or aluminium alloy, and the corresponding initial state, on the bases of the design functional requirements. 2. The ability of correctly analyzing and governing the production stages of mechanical components, taking into account the final properties of the used material.TRANSVERSAL SKILLS:
Simple exercises will be carried out during the course; the students will have the possibility to individually carry out similar exercises in the moodle platform. These activities will enable students to improve their autonomy, and communication, learning and critical skills
Principles of physical metallurgy. Deformation of metals and strengthening methods in metals. Phase diagrams. Steels: primary steel production (blast furnace, converter), scrap and recycling (electrical furnaces). Heat treatments of steels. Designation and properties of steels. Steels for general use, alloy steels, tool steels, stainless steels. Cast Irons. Light alloys (Aluminium)
Development of the examination
LEARNING EVALUATION METHODS
The method for learning evaluation will consist in a written test and in an oral interview. The written test will deal with phase diagrams, CCT and TTT curves, primary metallurgy, steel and aluminum alloys classification and their general features. During the oral examination, the candidate will be interviewed on the rest of the course program.
LEARNING EVALUATION CRITERIA
The candidate must be able to predict the microstructure and/or phases resulting from equilibrium (phase diagrams) and non equilibrium (TTT-CCT curves) transformations, and to properly identify steels and aluminum alloys by their designation according to UNI, AISI and IADS (International Alloy Designation System). During the oral examination, the candidate should exhibit a proper knowledge of the properties, heat treatments and applications of the different classes of materials.The student must be able to coherently describe concepts
LEARNING MEASUREMENT CRITERIA
Grading scheme is based on a scale of 30 points. Successful completion of the examination will lead to grades ranging from 18 to 30.
FINAL MARK ALLOCATION CRITERIA
The final grade will be the sum of grades obtained in the written and oral parts of the examination. Maximum grade obtained in the written part will be 15 points. Maximum grade attainable in the oral examination will be 18 points.
Barella, Gruttadauria: Metallurgia e Materiali non Metallici, Esculapio; W. Nicodemi: Metallurgia. Principi Generali e Gli Acciai, Zanichelli. A.Cigada, T.Pastore, Struttura e proprietà dei materiali metallici, McGraw-Hill. Additional contents will be available in the Moodle-page of the course.
- Ingegneria Meccanica (Corso di Laurea Triennale (DM 270/04))